Watchcase bow and pendant.



O. W. BUTTS.

WATOHCASE BOW AND PENDANT.

APPLICATION FILED MAY 1, 1913.

1,084,253. Patented Jan 13, 1914.

A? Q L I COLUMBIA PLANOGRAPH COWASHINGTON. D c.

UNITED sTnigis PATENT OFFICE.

CHARLES W. BUTTS, OF SAG HARBOR, NEW YORK, ASSIGNOR TO JOSEPH FAHYS &COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

WATCI-ICASE BOW AND PENDANT.

To all whom it may concern:

Be it known that I, GHARLEs W. BUTTS, a citizen of the United States,and a resident of Sag Harbor, county of Suffolk, and State of New York,have invented certain new and useful Improvements in Watchcase Bows andPendants, of which the following is a full and clear specification.

My invention relates to the manufacture of watch case bows and pendantsand in volves more particularly the attachment or connection of the bowto the pendant.

The invention is applicable to articles of this character whether formedof solid, precious or other metal, or precious metal filled with basemetal.

It is further more especially concerned with the attachment of Swiss orFrench bows to the pendant.

An important object of the invention is to provide an improvedconnection between the bow and pendant, which is neat in ap pearance andof great strength and firmness while not interfering with the freemovement of the bow on its axis.

The invention also has for one of its objects to provide an improvedconnection more especially for Swiss bows of filled stock.

To illustrate the invention I shall refer to an embodiment thereof withrelation to a Swiss bow of filled stock. Swiss bows of filled stock maybe produced in various ways and my presentinvention does not depend uponany one particular method of constructing the Swiss bows, but I mayrefer to Swiss bows such as those produced according to the U. S.patents to Harman, No. 1,019,636, and Butts No. 1,038,845. A Swiss bowof filled stock similar to those shown in the patents referred to isillustrated in the accompanying drawing as an example of the kind of bowto which my invention is applicable.

In said drawing, Figure 1 is a side elevation with a part of one of thebars in section showing a Swiss bow constructed in accordance with myinvention; Fig. 2 is a detail sectional view showing the bar providedwith the tapered recess for receiving the securing pin; Fig. 3 is asimilar view of the bar and part of the pendant, with the securing pininserted; Fig. 4 is a similar view with the pin permanently secured bythe material of the outer end of the bar;

Specification of Letters Patent.

Application filed May 1, 1913.

Patented Jan. 13, 1914.

Serial No. 764,806.

Fig. 5 is an enlarged detail View part in section showing a wire offilled stock after a preliminary operation upon it for form ing thesecuring pin.

As shown in Fig. 1 the Swiss bow comprises the bow portion 10 havingbars 11 which are in alinement with each other. The Swiss bow hereinshown is constructed of filled stock and the first operation to whichthe bow is subjected, according to my present invention, is to providethe bars 11 with longitudinal and inwardly tapering perforations, asindicated at 12, to receive the tapered securing pins 13. The bow havingits bars thus provided with longitudinal tapered perforations 12 is thenfitted onto the pendant 1 1, which is provided with a head portion 15 inwhich are formed sockets to receive the inner ends of bars 11, andrecesses forming continuations of the perforations in the bars 11 toreceive the tapered securing pins 13. Pins 13 may then be driveninwardly through bars 11 and into the perforations in the pendant head15, whereby the bow is securely connected with the pendant. The pins 13are constructed of a wire, as shown in Fig. 5, by first spinning incircumferential depressions 16, whereby the precious metal shell 17 ispartly drawn over the base metal which is to form the ends of the pins,and whereby the pin is more or less pointed at one end which is to formthe inner end of the pin when the latter is in place within the bow andpendant. The pins are then severed.

The small ends of pins 13 have sufficient freedom in the pendant head 15to turn therein thus forming an axis of oscillation for the bow 10, butare intended to be fixedly secured in the bars 11, which purpose isfurthcred by the tapering form of the pins and perforations. The outerends of the bars are next subjected to a burnishing operation forcrowding inward the material at the outer ends of the bars, whereby thehole in the end of the bar is closed, and the precious metal is workedpartly over the outer ends of pins 13. The material of the bars underthis last operation is forced into a compact solid mass around the endsof the pins, and the precious metal of the pins is further burnishedover the base metal at the outer ends of the pins, as illustrated inFig. 3.

I have referred to the pins 13 as having been constructed of filledstock, but it will be apparent that the invention is not limited to thisspecific feature as other forms of pins may be employed.

I claim:

1. The combination with a pendant provided with sockets and recessesleading therefrom, and a bow having bars seated in said sockets andprovided with longitudinal recesses; of securing pins disposed withinthe recesses of said pendant and bars, with the material of the barscontracted over the outer ends of said securing pins.

2. The combination with a pendant and a Swiss bow of filled stockmounted thereon; of a securing pin therefor, permanently secured withinthe pendant and bow, with the precious metal of the outer ends of thebars contracted over the outer ends of the secur ing pins.

CHARLES W. BUTTS.

Vitnesses PETER DIPPEL, M. E. VON Moos.

Copies of this patent may be obtained for five cents each by addressingthe Commissioner of Patentl. Washington, D. C.

